THE SEVEN LIFE PROCESSES

Looking at living things
Living things
 Although all living things look different
from each other, they all have seven
things in common.
 These seven things are called LIFE
PROCESSES.
 Something is only alive if it does all seven
processes.
THE SEVEN LIFE PROCESSES
1. ALL LIVING THINGS MOVE
 Animals move their
whole bodies to get
from one place to
another.
 Plants turn towards
the light and their
roots grow down into
the soil.
 Cells move in order to
search for food, close
wounds, sculpt organs
and even spread
diseases , among
many other things.
2. ALL LIVING THINGS REPRODUCE
 Animals have babies.
 New plants grow from
seeds.
 Cells reproduce in
order to increase the
number of cells,
maintain existing cells
and to repair or
replace damaged cells.
3.
ALL LIVING THINGS ARE SENSITIVE
 All living things respond
to changes. Living
things notice changes
in their surroundings
and react to them.
 Eg. Plants grow
towards the light.
 Eg. People react to the
temperature around
them.
 Cells respond to
changes, such as nerve
cells responding to light,
pain, heat, cold, etc.
4.
ALL LIVING THINGS NEED NUTRITION
 Food is used to provide
energy.
 Green plants make their
own food using sunlight.
 Animals eat plants or other
animals.
 Cells also have nutritional
needs that they get from
the food that is eaten.
5. ALL LIVING THINGS EXCRETE
 Waste substances
must be removed
from the body.
 Plants and animals
both need to get rid
of waste gas and
water.
 Cells must also get
rid of waste.
6. ALL LIVING THINGS RESPIRE
 Plants and animals
use turn food into
energy.
 Cells also harvest
the energy stored
in food so that they
can perform
necessary life
functions.
7. ALL LIVING THINGS GROW
 Babies grow into
adults.
 Seedlings grow into
plants.
 Cells will also grow to
a certain size before
they divide.
Use the first letter from each process to help
you remember them.
Move
Reproduce
Sensitive
Nutrition
Excrete
Respire
Grow
They spell MRS NERG
This is MRS NERG !
Can you
remember what
each of the letters
in her name stand
for ?
HOMEWORK
Write a newspaper article declaring that
spontaneous generation (organisms come
from non-living things like dirt & rocks) has
been rejected.
Include "interviews" with scientists contributing
to the cell theory. Use examples showing how
functions of cells compare to the functions
of organisms to support the theory.